Static voltage stability analysis on Kestern Kenya power network with wind power penetration

Abstract

The loading of Kenyan power network has been increasing due to connection of more house-holds and industrialization. This requires more generation of power in order to meet the rising demand. Renewable energy sources are preferred for generation for reasons such as cleanliness and low cost. This research work uses the western section of the Kenya Power network to analyze voltage stability issues. Voltage profile, bus participation factors, branch participation factors are used to determine the buses and branches that are more likely to be unstable. Wind power is injected to the network on the weaker side of the grid. Voltage profile is used to analyze voltage level changes when wind power is injected to the grid. Voltage-Reactive power (V-Q) sensitivities are analyzed to determine how the bus sensitivities vary with wind power injection to the grid. Reactive Power-Voltage (Q-V) curves are used to analyze the reactive power margin changes with wind power injection